seeley



(No Model.)

D. W.'& W. W.- SHELBY.

' LEVER POWER.

No. 297,954. Patented Apr. 29, 1884.

. UNITED STATES PATENT OFFICE.

. r r r DAVID W. SEELEY AND WILLIAM W. SEELEY, OF ALBANY, NEW YORK.

LEVER-FOWER.

SPECIPICATIOH forming part of Letters Patent No. 297,954, dated April 29, 1884.

Application filed April 3. 1884. (N0 model.)

To all whom, it may concern.-

Be it .known that we, DAVID W. SEELEY and WILLIAM W. SEELEY, both citizens of the United States, and residing in the city and county of Albany, and State of New York, have jointly invented a new and useful Improvement in Lever-Power; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which- Figure l-is a plan view of our invention. Fig. 2 is a plan View in which the arms forming the lever are shown by the .dotted lines as occupying different positions,and Fig. 3 is a vertical View of said invention. M

Similar letters denote like parts in the several views.

A represents the outward portion of the sweep, it being that portion of the sweep to the end of which is attached the motive power.

B is the other and inner portion of said sweep, it being that portion of the sweep which immediately operates upon the arms of the lever, which are denoted by the letters D and D. a I

O is a plate of any material, preferably, however, of metal, upon which the adjoining ends of the several portions of the sweep-to wit, A and B-rest, and to which the said portions of said sweep are firmly affixed by the rod or pin G.

E is the head of the arm D, joined thereto bya pin, and which is affixed to any plunger.

F is a rod or pin uniting the adjoining ends of the arms D and D, to form a knuckle-joint, and which also is inserted in the slot in the portion of the sweep, B.

H represents a slide, of any material, firmly placed in the end of that portion of the sweep,

A, which adjoins and comes in contact with the slotted portion of the sweep, B, and which is pushed, when required, into the recess made in the slotted portion of said sweep, B. l

I is a rod running through the eyes K K, (the latter being firmly affixed to the portion of the sweep, A,) and upon which and between the eyes K K is placed a spring, J.

L is the head of the rod I, against which the slotted portion of the sweep-to wit, B-

presses when the two portions of the sweep have formed the least angle. A pin is inserted in the rod I between the two eyes, against which the end of the spring nearest the head L presses, which pin is used to compress the spring when the head L of the rod I is pressed against.

\Ve do not confine ourselves to placing the spring upon the sides of the portion of the sweep, A; but the spring may be placed upon the sides of B, being the slotted portion of said sweep. The plate 0 is securely and immovably fastened to the frame of the machine, as shown in Fig. 3. The connection between the arms D and D may be made in any manneras, for instance, a'portion of either arm may be cut away, and one arm rest upon an other and joined by a rod, F, which is sufficiently long to extend upward into the slot in that portion of the sweep marked B; or, again, it maybe made as in Fig. 3 by affixing pieces of wood or metal on the upper and under sides or a piece of wood or metal upon either the upper or under side of one of the arms,

and then joining the arms by a rod passing through the piece or pieces of wood or metal and the other arm. The portion of the sweep marked A is usually made by cutting a semicircular piece from the end thereof, which joins the slotted portion of the sweep B, leaving sufficient thickness of material above and j below the portion cut out to give the proper strength to properly support the portion B,

which is inserted in such semi-circular recess. It may be made, however, as shown in Fig. 3, by securely and immovably affixing a piece of wood or metal either upon the upper or under side of the portion of the sweep, A, or upon both the upper and under sides thereof. The end of the slotted portion of the sweep to wit, Bnearest A is made semicircular in form, so as to fit in the semicircular recess however, to construct the device in the manner first above mentioned.

\Ve do not confine ourselves to a slide; nor do we confine ourselves to placing the slide in the portion of the sweep, A. It eanbe placed inB and pushed into a recess cut in A. Holes may be bored in both A and B, anda pin may be inserted in the holes to answer the same purpose as the slide.

The objects of our invention are to make either a solid sweep, so as to push in or draw out the plunger aflixed to the arm D thereby, or a loose-jointed sweep, to make a rebound press; also, to reduce the distance to be traveled over by the animals or men when operating the lever-power; also, to lessen the jar upon the animals or men operating the sweep; also, to equalize the purchase-power from the beginning to the end of the operation of pressing; also, to shorten the purchase-power as the resistance of the pressed material increases; also, to throw the arms of the lever and the slotted portion of the sweep over by the recoil of the spring; also, to gain a larger space in a pressing-machine in which to thro'a the material to be pressed. The sweep becomes rigid or solid by pushing the slide in the one portion of the sweep into the recess in the other portion thereof, or by placing one or more pins in corresponding holes or recesses in both portions of the sweep. When the sweep is used as a loose-jointed sweep, the rebound on the animals or men operating the sweep is prevented, for the reason that when the slotted portion of the sweep has just passed the center the elasticity of the substance against which the plunger aflixed to the arm D presses causes the plunger to recoil, and thereby throws the arms D and D past the center, and thereby and with them the slotted portion B of the sweep. By reason of one portion of the sweep coming in contact with the head of one of the springs attached to the side of the other portion of the sweep, the jar upon the animals operating or attached to the sweep is again lessened; also, the distance for such animals to travel is further shortened; also, further, the slotted portion of the sweep is still more quickly thrown over the center, and, also, the slotted portion of the sweep and the plunger connected to one of the arms of the lever are brought more speedily into position for another operation.

Having thus described our invention, what we claim, and desire to secure by Letters Patcut, is-

1. A sweep for a lever-power, consisting of two sections fastened together by a pin, and around which the two sections may be turned, one of which sections shall have a semicircular recessed head, and the other a semicircular head to fit into the semicircular recess in the other, and one of which sections shall be slotted, as described.

2. A sweep for a lever-power, consisting of two sections fastened together by a pin, and around which the two sections may be turned, one of which sections shall-have a semicircular recessed head, and the other a semicircu-' lar head to fit into the semicircular recess in the other, and one of which sections shall be slotted, and in one of which sections there shall be a slide or rod to be inserted in a hole or recess in the other section, for the purpose set forth, and as described.

3. The combination, in a lever-power, of one or more springs placed on the sides of one section of a double-section slotted sweep, and a sweep consisting of two sections joined together, one of which sections shall be slotted, as described.

4. The combination, in a lever-power, of a sweep made in two sections joined together, in one of which sections there shall be a slot, the two arms of a knuckle-jointed lever, and a pin which is inserted in one of the arms forming said knuckle-joint, and passes through and is operated upon by the slotted portion of said sweep, as described.

5. The process of shortening the purchasepower of a sweep of a lever-power as the resistance of the material pressed is increased, as described.

DAVID W. SEELEY. \VILLIAM W. SEELEY.

\Vitnesses:

G120. V. FEATHERSTONHAUGH, EDWIN G. DAY. 

